Progress Application Server for OpenEdge (PAS for OpenEdge) is a web server preconfigured to expose your ABL business and web-UI applications to HTTP clients in an internet/intranet environment. Because PAS for OpenEdge is constructed on top of a web server it will not behave, be configured, monitored, or tuned like the classic OpenEdge AppServer that you may be used to. This document provides basic guidance for tuning PAS for OpenEdge by providing you with relevant architectural information and description of the configuration controls you will use. After reading this paper you can expect to have a basic understanding of where to begin in monitoring and tuning the execution of PAS for OpenEdge to achieve optimal performance for your ABL application.